#ban a img:hover{
	-webkit-filter: brightness(1);
  filter: brightness(1);
}
.banner {
  margin: 0 auto;
  overflow: hidden;
  position: relative; }
  .banner:hover i {
    opacity: 1; }
  .banner .img {
    width: 7000px; }
  .banner .img li {
    float: left; }
    .banner .img li a {
      display: block;
      position: relative; }
      .banner .img li a img {
        width: 100%;
        vertical-align: top; }
      .banner .img li a b {
        position: absolute;
        left: 30px;
        top: 30px;
        color: #fff;
        font-size: 30px;
        text-shadow: 0 0 5px #000; }
  .banner .navlist {
    position: absolute;
    left: 50%;
    bottom: 6%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%); }
    .banner .navlist li {
      width: 20px;
      height: 20px;
      background: rgba(255, 255, 255, 0.6);
      border-radius: 50%;
      border: 1px solid #999;
      margin: 0 5px;
      float: left;
      -webkit-transition-duration: 0.2s;
      transition-duration: 0.2s;
      cursor: pointer; }
      .banner .navlist li:hover, .banner .navlist li.active {
        background: #fe0; }
  .banner i {
    display: block;
    font-size: 30px;
    width: 60px;
    text-align: center;
    color: #fff;
    background: rgba(0, 0, 0, 0.3);
    position: absolute;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    -webkit-transition: all 0.2s ease-out;
    transition: all 0.2s ease-out;
    opacity: 0;
    cursor: pointer; }
    .banner i:first-of-type {
      left: 0;
      border-top-right-radius: 5px;
      border-bottom-right-radius: 5px; }
    .banner i:last-of-type {
      right: 0;
      border-top-left-radius: 5px;
      border-bottom-left-radius: 5px; }
    .banner i:hover {
      background: rgba(0, 0, 0, 0.8); }
